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搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...
rs.initiate(config);
#输出成功
{
"info" : "Config now saved locally. Should come online in about a minute.",
"ok" : 1
}
#查看日志，副本集启动成功后，138为主节点PRIMARY，136、137为副本节点SECONDARY。
Sun Dec 29 20:26:13.842 [conn3]...
How to 'minify' Javascript code
...e.com, almost everything works on every browser (also ie10 is standardized now) , i think now it's just here to slow down your web application...if you like the $() you should create your own simple function.And why bother to compress your code if your clients need to download the 100kb jquery scrip...
Illegal pattern character 'T' when parsing a date string to java.util.Date
...
Update for Java 8 and higher
You can now simply do Instant.parse("2015-04-28T14:23:38.521Z") and get the correct thing now, especially since you should be using Instant instead of the broken java.util.Date with the most recent versions of Java.
You should be u...
Google Docs/Drive - number the headings
...
Update: now available in github.
Update 2: now handling empty headings and blank lines thanks to 2 pull requests on github.
Update 3: github and code below fixed to handle new Docs HEADING identification.
I modified the script m...
How to process SIGTERM signal gracefully?
... to use solution:
import signal
import time
class GracefulKiller:
kill_now = False
def __init__(self):
signal.signal(signal.SIGINT, self.exit_gracefully)
signal.signal(signal.SIGTERM, self.exit_gracefully)
def exit_gracefully(self,signum, frame):
self.kill_now = True
if __name_...
How to use UIScrollView in Storyboard
...ould like to be able to lay it out for easy design on the storyboard.
I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possible to get it to work like I want or do I have to do it in t...
Sending a message to nil in Objective-C
...ize(); ++i){
System.out.println(list.get(i).toString());
}
}
Now, if you call that method like so: someObject.foo(NULL); you're going to probably get a NullPointerException when it tries to access list, in this case in the call to list.size(); Now, you'd probably never call someObject....
Differences and relationship between glActiveTexture and glBindTexture
...ctiveObject(int currObject)
{
g_currObject = currObject;
}
Notice that now, we not only have a 2D list of Objects, but we also have the concept of a current object. We have a function to set the current object, we have the concept of a maximum number of current objects, and all of our object man...
What is an invariant?
...
It is a condition you know to always be true at a particular place in your logic and can check for when debugging to work out what has gone wrong.
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Get current time as formatted string in Go?
...
Use the time.Now() function and the time.Format() method.
t := time.Now()
fmt.Println(t.Format("20060102150405"))
prints out 20110504111515, or at least it did a few minutes ago. (I'm on Eastern Daylight Time.) There are several pre-de...